Not trying to be a wise guy, but many ranges use low wattage lights to conserve power. That translates for harder to see front sites for those that have less than ideal eye sight. Take a small hikers led head lamp and use it in the shooting booth. Will light up the front sight and make for better viewing if necessary. Some of those booths also have poor ventilation which translates to powder/lead in the lungs. When you blow your nose and you have dark matter in the mucus, that same stuff is in the lungs. Take a dust mask to prevent that if necessary or find a better range. Better to look like a goober at a range than a cancer patient in a bed some where.